From the Merriam Webster Dictionary
one that is young; especially : a young person or animal
At Star Wars Celebration there were quite a few Younglings wandering around the event including the following:
Youngling inside an R2 unit. Pic: R2 Builders Club Twitter Account
Youngling dressed as Padme that my husband took on the second day of Star Wars Celebration Anaheim
Twin Younglings cosplaying as Ahsoka Tano
Finally, my favorite Youngling, Darth Makenna sharing an Ice Cream Sundae with me just after the Event ended!